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re PR c/40172 (Revision 147596 breaks bootstrap)

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2009-05-19  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	PR c/40172
gcc/
	* c.opt (Wlogical-op): Disabled by default.
	* c-opt (c_common_post_options): Do not enable Wlogical-op with
	Wextra.
	* doc/invoke.texi (Wlogical-op): Likewise.
testsuite/
	* gcc.dg/pr40172.c: Add -Wlogical-op to dg-options.

From-SVN: r147717
This commit is contained in:
Manuel López-Ibáñez 2009-05-19 19:29:27 +00:00
parent 5aefc6a0f0
commit 7bb2707483
6 changed files with 16 additions and 7 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2009-05-19 Manuel López-Ibáñez <manu@gcc.gnu.org>
PR c/40172
* c.opt (Wlogical-op): Disabled by default.
* c-opt (c_common_post_options): Do not enable Wlogical-op with
Wextra.
* doc/invoke.texi (Wlogical-op): Likewise.
2009-05-19 Eric Botcazou <ebotcazou@adacore.com>
* tree-scalar-evolution.c (follow_ssa_edge_expr) <NOP_EXPR>: Turn

2
gcc/c-opts.c
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@ -1073,8 +1073,6 @@ c_common_post_options (const char **pfilename)
warn_override_init = extra_warnings;
if (warn_ignored_qualifiers == -1)
warn_ignored_qualifiers = extra_warnings;
if (warn_logical_op == -1)
warn_logical_op = extra_warnings;
/* -Wpointer-sign is disabled by default, but it is enabled if any
of -Wall or -pedantic are given. */

2
gcc/c.opt
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@ -285,7 +285,7 @@ C ObjC C++ ObjC++ Warning
Warn about PCH files that are found but not used
Wlogical-op
C ObjC C++ ObjC++ Var(warn_logical_op) Init(-1) Warning
C ObjC C++ ObjC++ Var(warn_logical_op) Init(0) Warning
Warn when a logical operator is suspiciously always evaluating to true or false
Wlong-long

4
gcc/doc/invoke.texi
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@ -2806,7 +2806,6 @@ name is still supported, but the newer name is more descriptive.)
@gccoptlist{-Wclobbered @gol
-Wempty-body @gol
-Wignored-qualifiers @gol
-Wlogical-op @gol
-Wmissing-field-initializers @gol
-Wmissing-parameter-type @r{(C only)} @gol
-Wold-style-declaration @r{(C only)} @gol
@ -3793,8 +3792,7 @@ programmer intended to use @code{strcmp}. This warning is enabled by
@opindex Wno-logical-op
Warn about suspicious uses of logical operators in expressions.
This includes using logical operators in contexts where a
bit-wise operator is likely to be expected. This warning is enabled by
@option{-Wextra}.
bit-wise operator is likely to be expected.
@item -Waggregate-return
@opindex Waggregate-return

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2009-05-19 Manuel López-Ibáñez <manu@gcc.gnu.org>
PR c/40172
* gcc.dg/pr40172.c: Add -Wlogical-op to dg-options.
2009-05-19 Eric Botcazou <ebotcazou@adacore.com>
* gnat.dg/loop_optimization6.ad[sb]: New test.

2
gcc/testsuite/gcc.dg/pr40172.c
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@ -1,6 +1,6 @@
/* PR middle-end/40172 */
/* { dg-do compile } */
/* { dg-options "-Wall -W -Werror" } */
/* { dg-options "-Wall -W -Werror -Wlogical-op" } */
struct rtx_def;
typedef struct rtx_def *rtx;